Therapists, psychologists, social workers, and psychiatrists report similar negative feelings towards such patients. Many of them try to ignore, deny, and repress them. The more mature health professionals realize that denial only exacerbates the undercurrents of tension and resentment, prevents effective patient management, and undermines any therapeutic alliance between healer and the ill.
It is not easy to cater to the needs of patients with personality disorders. By far the worst is the narcissistic (patient with Narcissistic Personality Disorder).
(From the book "Malignant Self-love: Narcissism Revisited" by Sam Vaknin - Click on this link to purchase: http://www.narcissistic-abuse.com/thebook.html)